Developer Tools
Image to Base64 Converter
Upload an image and instantly get its Base64 data URI for embedding in HTML, CSS, or code.
🖼️
Click or drag & drop an image here
Supports PNG, JPG, GIF, WebP, SVG
Convertissez n'importe quelle image en URI Base64 pour l'intégrer dans le code
Fonctionnalités
Multiple Output Formats
Get the image as a data URI, raw Base64 string, CSS background, or HTML img tag.
Drag & Drop Upload
Drag and drop your image or click to browse — supports PNG, JPG, GIF, WebP, and SVG.
File Info
Shows original file size and resulting Base64 string size.
Image Preview
Previews the uploaded image before copying the code.
Comment utiliser
- Click the drop zone or drag an image file onto it.
- The Base64 output appears instantly.
- Select the output format: Data URI, Base64 Only, CSS Background, or HTML img.
- Click 'Copy' to copy the result to your clipboard.
FAQ
What is a Base64 data URI?▾
A data URI embeds the image data directly in the URL as a Base64-encoded string, eliminating the need for a separate HTTP request to load the image.
When should I use Base64 images?▾
Best for small icons, logos, or critical above-the-fold images where avoiding an extra HTTP request improves performance. Large images increase HTML/CSS file size significantly.
Does Base64 increase file size?▾
Yes. Base64 encoding increases file size by approximately 33% compared to the original binary image.
What image formats are supported?▾
PNG, JPG/JPEG, GIF, WebP, BMP, and SVG — any format your browser can read as a File.
Base64 Use Cases
- Inline CSS background images to avoid extra requests
- Email HTML — embed images that aren't blocked by clients
- Single-file HTML pages with no external assets
- JSON payloads that include image data
- Small icons and favicons in JavaScript bundles
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